News
Tesla Holiday Update: New UI for Model 3 and Y, Light Show, blind spot camera improvements & more
Just a few days before Christmas, Tesla is kicking off the holidays with a bang. This year’s Holiday Update includes a few fun surprises for Tesla owners, including new games and a few other fun features.
Teslascope, a Tesla software update tracker service, has shared that the 2021.44.25 update is being rolled out to employees for now, with a wide release following in the lead up to Christmas. Reports shared online suggest that the update works very smoothly on vehicles like the Model 3 and Model Y, however.
New Features
First off is the Light Show, which enables Tesla vehicles to dance to a choreographed light show any time of the year. The feature was a signature trick of the Model X, so it is pretty interesting that Tesla is now rolling it out to the other vehicles in its lineup. The Light Show feature can be accessed through the Toybox.
In its Holiday Update, Tesla also introduced the Customizable App Launcher, allowing owners to customize the menu bar in their infotainment systems. This should go perfectly hand-in-hand with the Model 3 and Model Y’s update UI, which now matches the interface of the Model S Plaid and new Model X that were rolled out this year.
“Drag and drop your favorite apps to any position along the bottom menu bar for easy access. To customize your menu bar, hold any icon and then drag to reorder. To adjust climate controls such as heated seats and defrost, tap on the temperature or swipe up from the bottom of the screen,” the update’s Release Notes read.
Feature Improvements
As with any update, Tesla improved a few key features, including vehicle controls, blind spot monitoring, and Waypoints.
Simplified Controls makes it easier for Tesla owners to focus on navigation, media, and the most common primary controls. The improvement should make accessing features in the infotainment system easier, so driving or operating a Tesla may be more convenient and perhaps even safer.
The Blind Spot Camera feature is probably one of the best improvements in the Tesla Holiday update, as it provides vehicles with a video feed showing their blind spot when a turn signal is activated. “You can now automatically see a live camera view of your blind spot whenever you activate the turn signal,” the Release Notes for the feature read.
The Blind Spot Camera feature will most likely improve the safety of Tesla’s vehicles. Tap Controls>Autopilot>Automatic Blind Spot Camera to enable the feature.
Tesla also made trips easier with Edit Waypoints. The navigation improvements will probably be quite useful to families taking trips this holiday. The feature allows drivers to reorder or add multiple destinations to their route. Edit Waypoints will update the arrival times for each change on the route. “To add a stop, or edit a trip, initiate a navigation route, and tap the more options button not he turn list,” wrote Tesla on the Edit Waypoints Release Notes.
New Arcade Improvements
Being a Holiday Update, 2021.44.25 is rife with a number of improvements for Tesla Theater and Tesla Arcade. Access to a popular social media platform has also been enabled.
First up is Sonic the Hedgehog, which Elon Musk himself announced on Twitter recently. Multiplayer support for The Battle for Polytopia has also been enabled, which should make in-car gaming sessions even more fun.
Sudoku has also been added to the Tesla Arcade, complete with a mode that includes a smart hint system for beginners. Also, the popular social media app TikTok is now accessible to Teslas.
Other Improvements
Update 2021.44.25 is not all fun and games. Tesla included some Cold Weather Improvements to its Holiday Update, too. Preconditioning the cabin from the Tesla Mobile App when the battery is at a lower state of charge is now enabled. First row seat heaters can now automatically regulate seat temperatures based on the cabin’s environment and control set temperature.
Managing dashcam clips is also easier, as videos can now be deleted directly from the infotainment system. Themes for the infotainment system have been rolled out, too. For instance, Dark Mode is now available for Tesla displays. Dark Mode may be a simple update, but it could make vehicles safer, as a darker display reduced the chance of screen glare for the driver.
The Teslarati team would appreciate hearing from you. If you have any tips, reach out to me at maria@teslarati.com or via Twitter @Writer_01001101.
Elon Musk
How to use Grok Bot to block spam calls and texts
Musk told users to ask Grok Bot to scrub their phone numbers from spam lists.
Elon Musk has a new use case for Grok Bot, and it is the spam call. On Thursday he replied to an X user named Arash with a short instruction: “Ask your @Grok @Bot to remove your phone number from spam call & text lists!” Arash had said he got tired of the calls, had an AI bot find his number on listing sites and file removal requests, and packaged the process as a free skill for others.
The skill is called Spam-Call Scrubber, which is described to find a phone number on people search sites and data brokers, submits the opt outs, completes the confirmation emails those sites send back, and rechecks on a schedule the user picks. Using it requires the Grok Bot app. The pitch is time saved, since most broker opt outs sit behind separate forms on separate sites.
Ask your @Grok @Bot to remove your phone number from spam call & text lists!
— Elon Musk (@elonmusk) October 15, 2026
Musk said Grok Bot now gives each bot its own email address, and that it can detect scam emails. On Thursday he also said SpaceX would make users whole if the bot botches a purchase or leaks a card, then told users to shop away from Amazon after the retailer blocked the agent, as Teslarati reported. The terms of service we reviewed at the time put responsibility for what an agent does on the user.
For Tesla owners, Grok Bot is not just a phone app. Tesla brought Grok Bot into its vehicles on September 22, and we argued earlier this week that the Cybercab’s real advantage may be the errands it runs during a ride. Every Cybercab and the rest of the Model Y Robotaxi fleet has it enabled. The more routine tasks like this one become, the more a rider has reason to hand over something personal in the back seat.
The new Spam-Call Scrubber skill can be downloaded for free and works on sites that honor removal requests, while noting that listings can reappear, and illegal robocallers do not check any registry. Whether Spam-Call Scrubber cuts anyone’s call volume is something the first wave of users will find out, and Musk’s endorsement guarantees that wave is coming.
Investor's Corner
Tesla’s flying Roadster just revealed something bigger than the car
Analysts say the Roadster demo puts a Tesla and SpaceX merger back on the table.
The Roadster unveiling near Waco ended Thursday night, and by Friday morning much of the investor reaction had less to do with the car than with who owns the rocket technology inside it.
Wedbush analyst Dan Ives said the event “puts the Tesla/SpaceX relationship on the table in a tangible way,” pointing to the propulsion, pressure vessel and control hardware sitting on a Tesla product. Gene Munster of Deepwater Asset Management called the demo “a ridiculous display of engineering” with “no commercial value” beyond embarrassing traditional automakers, though he said it showed Musk wants the two companies together.
The more specific forecast came a day earlier from Barclays. Analyst Dan Levy told clients a deal could be announced before Tesla’s annual meeting, which must happen by December 6, and that an announcement in late October or early November could make shareholder approval harder. Barclays expects SpaceX to be the buyer in an all stock deal, with Tesla holders receiving SpaceX shares at a premium, based on market values of roughly $2.1 trillion for SpaceX and $1.5 trillion for Tesla. If nothing lands around the meeting, the bank still sees an announcement within 6 to 12 months.
The Roadster demo just added more weight to merger speculations. Tesla’s demo used cold gas thrusters and pressure tanks of the kind SpaceX uses on Falcon 9, and Musk described the car as a collaboration between Tesla and SpaceX engineers, as we mentioned in our breakdown of the three Roadster configurations.
Musk has not publicly addressed a deal since the event, as far as we have seen. His most direct answer remains the one he gave at the All In Summit, when he said that with so much collaboration, “who can imagine what action one might take” without ruling anything out. Ives has held to a 2027 timeline since his March note, and Musk pushed back on the China piece of the speculation when ARK floated a year end announcement in August.
The next test is Tesla’s third quarter earnings call on October 21. However, we recall in July that Musk told analysts, “we can’t talk about combining companies and that kind of thing on an earnings call,” so a clear answer wouldn’t be expected.
News
How Tesla’s Roadster fan system and thrusters are built to dominate the corners
Tesla’s Roadster uses fans, active wings and cold gas thrusters to create grip at any speed.
Tesla’s new Roadster is best known for flipping through the air in Texas, but the technology that matters most for a race track is the stuff that keeps it on the ground. Tesla’s Roadster page describes a multi-mode fan and ground sealing system that acts as a downforce generator, pulling air out from beneath the car. Tesla says it provides enough suction to hold the vehicle upside down, even when stationary.
That is the key difference from the wings and diffusers on a normal supercar. Conventional aero only makes downforce when the car is moving, and it grows with speed, so a car has the least grip in the slow corners and under hard braking. A fan system makes downforce at any speed. Tesla’s patent, which we covered last year, describes fans and deployable skirts that create sealed or partially sealed regions under the car, with the fans extracting air to lower the pressure and increase grip and stability.
Still processing this … the most unreal thing I’ve seen. https://t.co/HtEuvnkZjY
— TESLARATI (@Teslarati) October 16, 2026
Tesla pairs that with active wings, a next generation steer by wire system and a Track Mode that lowers the car and changes the suspension, with high downforce and low drag settings for the circuit. To keep weight down, Tesla points to magnesium, titanium and carbon fiber, manual controls and a fixed seat position, which it says lets the car respond to driver inputs almost instantly.
Tesla Roadster: Three configs, one can fly, 0-60 in 0.8 seconds
The cold gas thrusters are the other half. On the Thrust version they sit at the rear and Tesla says they take the car from 0 to 60 mph in under 0.9 seconds, while the Rocket version adds perimeter thrusters for forward, upward and lateral rotational movement. Tesla says the all electric actuators make micro adjustments within a fraction of a second.
Roadster transforms in Track Mode
These aero features aren’t just for looks: they provide the best passive downforce package of any road car (approaching F1 levels!) with wing actuation driven by the @Tesla_Optimus actuator system https://t.co/AqrC4qUga9
— Tesla (@Tesla) October 16, 2026
Musk has been talking about records for years. In June 2019 he said, “We’re going to do things with the new Roadster that are kind of unfair to other cars.” That September, when a follower asked whether the Roadster would beat the Nürburgring production car record, he replied with one word, “Absolutely,” as we reported at the time. In February 2024 he said Tesla had “radically increased the design goals” for the car and that its sub one second 0 to 60 time would be “the least interesting part.”
There are caveats. Tesla has not published a lap time or a verified cornering figure, so the record talk is still a promise rather than a result. Tesla also says the car is not approved for public road use, and the thruster features are limited to the Rocket trim, which is invite only. Fan cars have also been banned or withdrawn before, and getting a sealed underbody to work on a rough public road is a harder problem than on a smooth track. The first real test will be an official lap at a circuit.